Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu viet xo snippets" » "sieu viet xo snippets", "tieu viet xo snippets", "dien viet xo snippets", "lieu viet o snippets", "lieu viet co snippets", "lieu viet cho snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("lieu viet xo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lieu viet xo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu viet xo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu viet xo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.